
Skill sets :
Core Java
Multithreading
Spring
Collections
Kafka
No SQL experience / Mongo / Cassandra ( nice to have )
Location: preferably Bangalore / open to Mumbai on review
Experience: 7-10 yrs
Open positions: 2
Notice period: Immediate - 30 days

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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We're seeking an experienced Backend Software Engineer to join our team.
As a backend engineer, you will be responsible for designing, developing, and deploying scalable backends for the products we build at NonStop.
This includes APIs, databases, and server-side logic.
Responsibilities:
- Design, develop, and deploy backend systems, including APIs, databases, and server-side logic
- Write clean, efficient, and well-documented code that adheres to industry standards and best practices
- Participate in code reviews and contribute to the improvement of the codebase
- Debug and resolve issues in the existing codebase
- Develop and execute unit tests to ensure high code quality
- Work with DevOps engineers to ensure seamless deployment of software changes
- Monitor application performance, identify bottlenecks, and optimize systems for better scalability and efficiency
- Stay up-to-date with industry trends and emerging technologies; advocate for best practices and new ideas within the team
- Collaborate with cross-functional teams to identify and prioritize project requirements
Requirements:
- At least 2+ years of experience building scalable and reliable backend systems
- Strong proficiency in either of the programming languages such as Python, Node.js, Golang, RoR
- Experience with either of the frameworks such as Django, Express, gRPC
- Knowledge of database systems such as MySQL, PostgreSQL, MongoDB, Cassandra, or Redis
- Familiarity with containerization technologies such as Docker and Kubernetes
- Understanding of software development methodologies such as Agile and Scrum
- Ability to demonstrate flexibility wrt picking a new technology stack and ramping up on the same fairly quickly
- Bachelor's/Master's degree in Computer Science or related field
- Strong problem-solving skills and ability to collaborate effectively with cross-functional teams
- Good written and verbal communication skills in English
Job Summary:
Senior Java developer will be responsible for many duties throughout the development lifecycle of applications, from concept and design right through to testing.
Duties/Responsibilities:
- To support and maintain existing Java code base, debug the application
- To analyse user and business requirements and design and implement appropriate solutions
- To design and code programs following in-house standards and good design principles
- To ensure that all programs are documented to the company standards
- To create unit test plans and perform unit testing of the programs
- To provide advice and guidance to other members of the team
Required Skills/Abilities:
- Hands on experience in designing and developing applications using Java EE platforms
- Object Oriented analysis and design using common design patterns
- Good knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
- Experience in the Spring Framework
- Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT, Spring MVC)
- Experience in RESTFul webservices
- Experience with test-driven development
- Exposure to portal/mobility development - Desired
- Exposure to any of middleware solutions like MQ, Oracle fusion middleware(WebLogic), WebSphere, Open Source
You will be working hands-on on a complex and compound product that has the potential to be used by millions of sales and marketing people around the world. Your contribution to delivering an excellent product platform that:
- enables quick iteration
- supports product customization
- and handles scale
What do we expect you to have?
- 2+ years of experience in backend engineering
- An intent to learn and an urge to build a product by learning different technologies
- Interest in writing complex, scalable, and maintainable backend applications
- Tech stack requirements:
Must haves
- Experience in building application server in Java (Spring / Spring boot) / NodeJS / Golang / Python
- Experience in using SQL databases and designing schemas based on application need
- Experience with container services and runtimes (docker / docker-compose / k8s)
- Experience with cloud paas (AWS / GCP / Azure cloud)
- Experience and familiarity with microservices’ concepts
- Experience with bash scripting
Good to have (Preferred)
- Preferred experience with org wide message queue (rabbitmq / aws sqs)
- Preferred experience with task orchestration services (apache airflow / aws step function)
- Preferred experience with infra as code (or system configuration) tools (terraform / chef / ansible)
- Preferred experience with build essential tools (make / makefile)
- Preferred experience with monitoring and tracing systems for performance / system / application monitoring (grafana + loki + prometheus / aws cloudwatch)
What will you learn?
- Building highly available, complex, compound, performant systems of microservices platform that acts as an API layer
- Industry-standard state-of-the-art tools + methodologies + frameworks + infra for building a product.
- Fable is not a trivial CRUD app. It requires a lot of consideration and care for building the API layer as the product is highly customizable per user.
- How different functions (sales, marketing, product, engineering) in a high-velocity product company work in synergy to deliver an iterative product in real life.
Who would you be working with?
- You would be directly working with the co-founder & CTO who has built multiple companies before and has built large teams in large-scale companies like ThoughtSpot, Unacademy, etc.
Position details
- Fully remote.
- 5 days/week (all public and government holidays will be non-working days).
- No specific work hours (we will sync over zoom over the course of the day).


Back End Developer
Job Description:
Location: Pune (Initially Remote due to COVID 19)
We are looking for an experienced Backend Developer to join the team in India and be instrumental in taking our products to the next level. In this role, you will be working in close collaboration with a team of highly empowered, experienced developers who are building a high-performance, highly scaled global platform.
About the Organisation:
- It provides a dynamic, fun workplace filled with passionate individuals. We are at the cutting edge of advertising technology and there is never a dull moment at work.
- We have a truly global footprint, with our headquarters in Singapore and offices in Australia, United States, Germany, United Kingdom, and India.
- You will gain work experience in a global environment. We speak over 20 different languages, from more than 16 different nationalities and over 42% of our staff are multilingual.
You will:
- conceive, build, and operate highly distributed systems deployed around the planet
- employ cutting-edge technologies and techniques in a rapidly evolving domain
- thrive in a progressive, environment which relies on communication and initiative rather than process to deliver at a high velocity
- have a "Product Owner" rather than a "Task Implementer" attitude
Candidate's Profile:
- Experience building systems involving messaging or event-driven architectures
- Deep technical understanding of Java or Go, and willing to work with both
- Strong handle on concurrency challenges and design solutions
- Strong buyer of Agile / Lean values
- Heavy emphasis on code testing and designing for test-ability
- Maturity and aptitude to operate in a high-freedom/high-responsibility environment
- Strong troubleshooting skills
- Experience with supporting and troubleshooting large systems
- Exposure to infrastructure automation tools such as Ansible
- Exposure to IAAS platforms such as AWS EC2, GCP, etc…
- Experience with Cassandra, Aerospike, or other NoSQL databases
• Experience in JSP & Servlets, Struts, Hibernate, MVC, EJB, Spring Framework, J2ME (LWUIT Lightweight user interface is added advantage),
• Android, AJAX, jQuery, Java Web services, Dynamic Reports are desirable.
• A good understanding of OOP concepts, MVC architecture, and RDBMS is desirable.
• Exposure to all phases of the Software Development Life Cycle (SDLC) is a plus. ● Web Technologies like HTML, CSS, Javascript and JQuery
Strong experience in Core java technologies
Good experience in Restful Webservices
Good Experience in Database concepts.
Good Communication Skills & client/customer interaction experience.




